Hi JurusGomes,
While you might be tempted to place a lot of meaning on your performances on quizzes and practice sets, the only practical way to truly assess your progress -and how well you might perform on the Official GMAT - is to take a FULL-LENGTH CAT and take it in a realistic fashion (take the FULL CAT - with the Essay and IR sections, take it away from your home, at the same time of day as when you'll take the Official GMAT, etc.). Since it's been a month since you took your 1st CAT, it would be a good idea to take another CAT sometime soon. Once you have that score, you should report back here and we can discuss the results and how you might adjust your studies.
Beyond that data, it would also help if you could provide a bit more information on your timeline and your goals:
1) How many hours do you typically study each week?
2) What is your overall goal score?
3) When are you planning to take the GMAT?
4) When are you planning to apply to Business School?
5) What Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich